public class Example7_7 {
public static void main(String args[]) {
   CargoBoat ship = new CargoBoat();
   ship.setMaxContent(1000);
   int m = 600;
   try{
        ship.loading(m);
        m = 400;
        ship.loading(m);
        m = 367;
        ship.loading(m);
        m = 555;
        ship.loading(m);
   }
   catch(DangerException e) {
      System.out.println(e.warnMess());
      System.out.println("无法再装载重量是"+m+"吨的集装箱");
   }
   finally {
      System.out.printf("货船将正点启航");
   }
  }
}
